How much air should I put in psi?

2000 Honda Civic Lx says that the tires should be 30psi (front) and 29 psi (rear) but the tires I have aren't the original tires. On the tires it says max psi 44 (front) and on the rear tires it says 50 psi. Which one should I go with? Or should I find something in between?

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